425126569 has 4 divisors (see below), whose sum is σ = 485858944. Its totient is φ = 364394196.

The previous prime is 425126563. The next prime is 425126579. The reversal of 425126569 is 965621524.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 425126569 - 2¹¹ = 425124521 is a prime.

It is a super-2 number, since 2×425126569² = 361465199339423522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425126563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30366177 + ... + 30366190.

It is an arithmetic number, because the mean of its divisors is an integer number (121464736).

Almost surely, 2^425126569 is an apocalyptic number.

It is an amenable number.

425126569 is a deficient number, since it is larger than the sum of its proper divisors (60732375).

425126569 is an equidigital number, since it uses as much as digits as its factorization.

425126569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60732374.

The product of its digits is 129600, while the sum is 40.

The square root of 425126569 is about 20618.5976487248. The cubic root of 425126569 is about 751.9219264285.

The spelling of 425126569 in words is "four hundred twenty-five million, one hundred twenty-six thousand, five hundred sixty-nine".